Count, how many times vowels occurred.
x='string the MaTLaBiAn' then the answer will be 6.
x='coUnt the vowEl' then it will produce 5
Back and Forth Rows
Prime factor digits
Distance walked 3D
Back to basics 9 - Indexed References
03 - Matrix Variables 2
ZigZag matrix with reflected format
Reverse CHECKBOX MATRIX with 69
Diagonal & Anti-Diagonal Matrix: Easy
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